9Round is a great high intensity workout. The fact that I can show up at any time and be out 30-40 minutes later makes it fit my schedule. Also, the trainers are all great! Highly recommend this gym for anyone who likes a flexible schedule and high impact full body workout with a balance of personal effort and coaching.

Joseph is rad! Great people, great atmosphere, lots of fun. Hell give you the push you need while making you smile and laugh at the same time.

Great full body work out in a short time that allows me to work it into my day!

Great challenging full body work-out in 30 minutes!

The trainers at 9Round Boulder are amazing, however the ownership and management are terrible. They are the worst communicators, especially when it comes to memberships/payment issues. If you want to freeze your membership, don’t expect them to actually freeze it. Instead, they will keep charging you and then not refund you your money. They don’t keep their word and they will flat out ignore you, especially if they owe you money. I’ve been going back and forth with them for over four months now trying to get my money back after they agreed, in writing, to freeze my membership. Do not waste your time or money here. If you’re interested in the workout, I highly suggest going to a different location.

Great work out and awesome trainers!

Love this gym! Friendly trainers who kick your butt!!!!!!! (In a good way). It’s so convenient and I’m usually in and out in 45 min whenever i want. That includes me changing beforehand and stretching after. I feel more fit than I’ve ever been before in such a short amount of time. The workouts are HARD every time. I’ve been doing this for almost 6 months now and it’s still hard!

I love this place but its not for everyone.PROS: Come in anytime they are open for a quick 30 min workout. Can do multiple work outs a time. I can definitely feel my body being worked and I am actually gaining muscle. You will be sore for the first few weeks.Sweat A LOT. For a personal trainer to give you a set workout the fees are a steal. I recommend purchasing your own gloves and hand wraps from amazon cause its cheaper. If you get there NOT during peak hours you have the place to yourself and the trainer can really help you focus on certain areas.There is only one CON I have is that the inconsistency in the trainers. 90% of the time I train with Jack at the boulder location and hes awesome. Even when it is busy, he makes sure that everyone is having a quality workout. But since September theyve had some meh trainers that would rarely give you attention, would be on their phones once they give you a workout and could really care less if you got a quality workout. Dont get me wrong, there are some awesome trainers that will make your workout worthwhile, but then there will be times I go in and I leave without the satisfaction of a quality workout

I love this place. I love the fact that there are no machines involved where I workout on my own for a long time. I like the fact that there are trainers always who are enthusiastic about my workout. All trainers are super helpful about your goals and diet. I love to be part of this healthy community!

The Boulder 9Round is awesome. Staff is helpful and kind. I always get a good work out. As someone who struggles with exercise and finding it boring, 9 round is perfect because it is 30 minutes long and changes everyday so its never boring. I also like it because it is way cheaper than most specialty gyms, which is nice as a recent college grad. I would definitely recommend!

The absolute best place to get a fast butt kicking workout! I love everything about 9round, plus is incredibly convenient! I followed the 9round nutrition guide, and worked out only a couple times a week, and in just a few months I lost 20 pounds! Definitely an A+.

Such a good workout. Ive been coming here for about a little over a year now and I love it. Christian is one of the personal trainers and hes awesome.. He pushes you in a good way and is always willing to help out in any way. I love how theres no class time and you can drop in whenever. Go check it out, you wont be disappointed👊🏼💪🏼😊

Im a beginner to working out, so its nice to have the workouts laid out for me. Trainers are helpful and personable. Also love how there arent any class times so I can come and go when I want to.

I LOVE that there is no “class time” & that I can just pop in whenever I can work it in my day and jump right in & be out in 30 mins! ALSO, I LOVE the staff at the Boulder location!!! Jake & Taylor are especially awesome! But everyone I’ve met has been amazing! It makes it so much easier to go when I know I will be welcomed & cheered on & guided & pushed hard through my workout! I have already lost 4% body fat in 3 weeks & I feel stronger & much more toned...not to mention the mental benefits!!! 😁 BEST WORKOUTS EVER!

Be careful with their contracts.Although I had to move out and the current pandemic, they refuse to cancel my contract.Very disappointing treatment after I spent there two years.

I look forward to my next workout, the trainers are absolutely fantastic humans, and I can physically feel a difference in my body every single time I exercise. The individualized help doesnt make you feel as if you are constantly being judged, and you dont feel the constant eyes of someone on you; they are there to help you help yourself and direct you when needed. This is by far the best program I have ever been a part of, trying it out has made a huge difference in my physical appearance and mental attitude.

I love this place!! The awesome trainers help every step of the way and its a really fun way to get in a great workout in a supportive environment.

9Round changed my life and I cant recommend it enough. I used to weigh 330 and was on the verge of having diabetes. After joining 9Round, I lost 130 lbs and my doctor now says I am a specimen of perfect physical health. This is in large part due to the 9Round trainers who are always encouraging (or I likely would have given up early) and also the flexible 30 minute work-outs since my work schedule is usually 60+ hrs a week. I highly recommend anybody thinking about joining a gym or wanting to get into a regular workout to sign-up and try 9Round. It can be life-changing :-)!

This place kicks a$$!Ahhh, interval training! Youll be done before you know it, and youll see results before you expect to! Trainers at the Boulder location are wonderful - they try really hard to give everyone individual attention and keep everyone engaged. Theyll give you pointers to improve your technique, and are always ready with modifications to step it up/down as needed. FUN FUN FUN!

9 Round is the perfect workout! 30 minutes, you can jump into the circuit at any time, no scheduled classes. Great whole body workout! LOVE IT!

I love 9round! The workouts are fast, convenient and effective. The trainers are fun and motivating and its a great atmosphere!

Went in today to try their free trial workout. OMG! I love it. Kicked my butt and I want more. Havent worked out in 3 to 4 months, and I felt it. But the trainer was great, motivating and encouraging. Great vibe and energy in this place. Ive done similar home workouts, but adding in the resistance of the bags, money! Cant wait to come back for more.

I love me some 9 round workouts! The trainees are great st motivating and critiquing you to help you reach your fitness goals:

I really enjoy the setup and concept. But the trainers are really fun to work with. They are always encouraging and never try to push you too hard. But they will if you ask :)It’s a lot of fun and I totally reccomend trying it once!

I love so many things about 9Round - the high intensity, the variety of motions and workouts at each station that keeps it interesting and fun, the motivating trainers, the predictable buzzer, the challenge of the week that always helps me do a little more than I think...AND KICKING THE S*** OUT OF THE BAGS!

Love that you always have a personal coach and theres no set time for class so I go whenever its convenient for me. Workout only takes half-an-hour and its challenging, works all your muscles and is something different every time.

Amazing to be welcomed by another 9round. Thanks for the amazing workout Briana!

I signed up for this and was immediately engaged by text messages where Jake says he is looking for the right people. He asked some pretty insulting questions to which I answered. He never replied. I sent a message asking to cancel and he still did not reply. Then he began sending me reminder messages and I attempted to get a real response again. He again never answered. After the appointment time went by, he is still sending me texts and emails now shaming me for missing the appointment. It is the least personal experience I have EVER had. Go to any other facility. This is for toads.

I love the 9Rounds Boulder gym! The staff is super friendly and super motivating! I love the fact the gym works around my schedule! I love that it’s a overall body workout! Brijesh, Ilaria and Bri really loves pushing me the the max every time I’m in and I appreciate them for that so much! Definitely worth stopping by for a free workout! 🖤

BEWARE! The free 6 week challenge results in an hour orientation where the owner, Jake, will speak condescendingly to you for 45 minutes before revealing that AFTER you pay $600 you could get it back if you lose the weight/build the muscle they want you to. I left feeling violated, manipulated and gross.I used to be a member at 9Round a few years ago and loved it. Because of Jake and this manipulative scheme, I will not be going back. Major bummer because the idea of this place is awesome, and with the right people it could be. I had previously reviewed with 5 stars because I loved it so much. After my latest interaction, I left feeling so gross that I had to update.

The trainers, Bregis and Matt, are exceptional!

Normally work out Longmont but I was in the area. Jack really helped me have a great workout.

The trainers motivation!! They are the best!

Great workouts without a lot of stress.